Patent application number | Description | Published |
20080213590 | Invention Concerning Agricultural Active Substances - The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology. | 09-04-2008 |
20080261043 | Method for Producing Nanofibres and Mesofibres by the Electrospinning of Colloidal Dispersions - Processes for forming polymer fibers, comprising: (a) providing a colloidal dispersion of at least one essentially water-insoluble polymer in an aqueous medium; and (b) electrospinning the colloidal dispersion; polymer fibers prepared by such processes; and colloidal dispersions comprising: at least one essentially water-insoluble polymer in an aqueous medium; and at least 10% by weight of a water-soluble polymer having a solubility in water of at least 0.1% by weight. | 10-23-2008 |
20090004086 | Thermoelectric Nanomaterials - The present invention relates to processes for producing nanowires and nanotubes by treating a fiber comprising at least one support material and at least one thermoelectrically active material or a precursor compound of a thermoelectrically active material, to a nanowire comprising at least one thermoelectrically active material and having a diameter of ≦200 nm and a length of ≧1 mm, to nanotubes comprising at least one thermoelectrically active material and having a diameter of ≦200 nm, a wall thickness of ≦30 nm and a length of ≧1 mm, and to the use of the nanowires or nanotubes for thermoelectric heating, for electricity generation, in sensors or for temperature control. | 01-01-2009 |
20090032461 | METHOD FOR SEPARATING POLYMER SYSTEMS AND PORE-FREE POLYMER FILMS USED IN SAID METHOD - The subject matter of the invention is an innovative method for the separation of polymer systems regarding their molecular weight, chemical structure, chain architecture, and colloidal additives. Such separations are currently accomplished by selective precipitation from solution, by a fractionated crystallization also from solution, and by means of gel chromatographic methods. | 02-05-2009 |
20090130301 | APPARATUS AND METHOD FOR PRODUCING ELECTRICALLY CONDUCTING NANOSTRUCTURES BY MEANS OF ELECTROSPINNING - Apparatus and method for producing electrically conducting nanostructures by means of electrospinning, the apparatus having at least a substrate holder ( | 05-21-2009 |
20090148701 | Production of Metal Nano-and Mesofibers - The invention relates to a method for producing metal oxide fibers with diameters on the micro- and nanometric scale by using electrospinning. At least one polymer is dissolved in a solvent, a metal salt is dissolved in this polymer solution, and this mixture is subsequently electrospun into fibers. Breaking down the polymer renders metal oxide fibers accessible that can be optionally reduced into the corresponding metal fibers. | 06-11-2009 |
20090186998 | PARYLENE VARIANTS AND METHODS OF SYNTHESIS AND USE - Fluorinated paracyclophane compounds represented by the formula: | 07-23-2009 |
20100013126 | PROCESS FOR PRODUCING NANO- AND MESOFIBERS BY ELECTROSPINNING COLLOIDAL DISPERSIONS - The present invention relates to a process for producing polymer fibers, especially nano- and mesofibers, by the electrospinning process, in which a colloidal dispersion of at least one essentially water-insoluble polymer and of at least one nonionic surfactant, if appropriate further comprising at least one water-soluble polymer, is electrospun in an aqueous medium. The present invention further relates to fibers obtainable by this process. | 01-21-2010 |
20100221519 | PROCESS FOR PRODUCING NANO- AND MESOFIBERS BY ELECTROSPINNING COLLOIDAL DISPERSIONS COMPRISING AT LEAST ONE ESSENTIALLY WATER-INSOLUBLE POLYMER - The present invention relates to a process for producing polymer fibers, especially nano- and mesofibers, by electrospinning a colloidal dispersion of at least one essentially water-insoluble polymer in an aqueous medium, and to fibers obtainable by this process, to textile fabrics comprising the inventive fibers, and to the use of the inventive fibers and of the inventive textile fabrics. | 09-02-2010 |
20100286303 | METHOD FOR PRODUCING POLYARYL ETHERS - A process for preparing polyaryl ethers in which a polycondensation of the monomer building blocks is carried out using microwave irradiation leads to thermoplastic molding compositions having improved color properties. | 11-11-2010 |
20100292623 | POLYETHYLENIMINE NANOPARTICLE-CONTAINING MICROBICIDAL ELECTROSPUN POLYMER FIBERS FOR TEXTILE APPLICATIONS - The present invention relates to a process for producing electrospun fibers comprising polyethyleneimine nanoparticles (PEIN). The use of PEIN permits the antibacterial finishing of electrospinnable polymers, provided that these polyethyleneimine nanoparticles are particles of derivatized polyethyleneimine (PEI), since pure underivatized PEI has no antibacterial action. Preference is given to using quaternized polyethyleneimine. The electrospinnable polymers can be coated with PEIN during and/or after the electrospinning. The polymeric fibers obtainable by the process according to the invention can be used for textile fibers, for example for the production of fibers for functional apparel or for fibrous nonwoven webs or fibrous mats for cell culture substrates. | 11-18-2010 |
20110082263 | MEDICAL DEVICES COMPRISING A MODIFIED POLYAMIDE - The present invention refers to medical devices comprising a modified polyamide or to modified polyamides or modified polyamide elastomers with the polyamides having high flexibility and high stress resistance, especially tensile strength or tear resistance, in addition to the good physical characteristics of the known polyamide elastomers. | 04-07-2011 |
20110160426 | HYDROLYTICALLY DECOMPOSABLE IONIC COPOLYMERS - The invention at hand provides hydrolytically degradable ionic copolymers. These ionic copolymerizates are composed of one cyclic ketene acetal A, one anionic or cationic methacrylic acid derivative B, selected from 2-methyl-methacrylate, [2-(2-methyl-1-methylene-allyloxy)]ethanesulfonate, [2-(2-methyl-1-methylene-allyloxy)ethyl]phosphonate or a quaternary amine of the N,N-dimethylaminoethylmethacrylic acid (DMAEMA) and, optionally, a neutral methacrylic acid derivative C. | 06-30-2011 |
20110293846 | METHOD FOR COATING TARGET SURFACES IN THE FORM OF DIELECTRIC SUBSTANCES OR FERROELECTRIC CRYSTALS - The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology. | 12-01-2011 |
20110300251 | DEVICE FOR THE EXECUTION OF THE OUTPUT OF NANOSCALED POLYMER FIBERS - Carriers for the production and targeted and/or delayed release, particularly of agricultural active substances, as well as a method for the output and a device for the production of such carriers in a loaded or unloaded state are proposed. The method and the device use the technology of electrospinning. | 12-08-2011 |
20110300383 | NANOSCALED POLYMER FIBERS - The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology. | 12-08-2011 |
20120107900 | Electrospun Polymer Fibers Comprising Particles of Bacteria-Containing Hydrogels - The present invention provides electrospun polymer fibers comprising bacteria-containing hydrogel particles. Bacteria-containing hydrogel particles are produced by crosslinking water-soluble polymers to form hydrogels and mixing them with a bacteria suspension. The crosslinking is suitable to be carried out either chemically before the addition of the bacteria suspension or physically before or after this addition. Subsequently, these hydrogel particles are electrospun together with an electrospinnable polymer solution to form fibers or fibre non-wovens. | 05-03-2012 |
20120259064 | Polymeric or Oligomeric Active Ingredients Having a Biocidal Effect, Method for the Production Thereof, and Composition Comprising a Polymeric or Oligomeric Active Ingredient - The invention provides new polymeric or oligomeric active agents with a biocidal effect. Such particularly advantageous polymeric or oligomeric active agents with a biocidal effect are obtainable via polycondensation of a guanidine acid addition salt with an amine mixture comprising at least one diamine and/or one triamine, wherein at least one amine is selected from the group comprising i) diamine, comprising at least one cycloaliphatic residue, and ii) dialkylenetriamine. At least one amine is hereby preferably selected from 4,4′-methylenebis(cyclohexylamine) and diethylenetriamine. Furthermore, it is favorable if the guanidine acid addition salt is guanidinehydrochloride. | 10-11-2012 |
20130214441 | SECONDARY AQUEOUS DISPERSIONS OF BIODEGRADABLE DIBLOCK COPOLYESTERS, PROCESSES FOR PREPARATION THEREOF AND USE THEREOF - The present invention provides aqueous stable suspensions of biodegradable diblock copolyesters and a method for their production. The diblock copolyesters comprise one block of an aliphatic polyester and one block of a polyethylene oxide. | 08-22-2013 |